WEG Molded Case Circuit Breakers - User’s Manual
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WEG Molded Case Circuit Breakers - User’s Manual
11
Blue
NO
NC
-
+
-
+
Black
Yellow
Left side of breaker
24 Volt DC
Red
Figure 9
1. Test port: a test port is built into each trip unit to allow use of a functional test kit. The
test kit performs a test of the long delay, short delay and ground fault functions.
2. Test LED: to be used with a no trip functional test. This LED is a dual function
light. As previously stated, the LED is used as a no trip indicator when using
the test port. In normal modes, this LED indicates a high load alarm. It will light
if the continuous current is 95% of the setting and must be present for a 38
second duration.
3. IR - continuous current setting: in accordance with standards requirements,
the trip unit initiates a trip of the circuit breaker within 2 hours for an overload of
135% and will trip as a function of 12 t for higher currents. Continuous current
values for each lettered setting are indicated by the chart on the right side of
the trip unit.